<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" type="text/css" href="css/center.css" /> 
</head>
<body>
   <div class="cet"> dff </div>
  <div class="div1"></div>
  <div class="df"></div>
<div class="cd"></div>
  <div class="p"></div>
</body>
</html>